if (!symbol_uses.has_value()) {
      return failure();
    }
    for (auto use : *symbol_uses) {
      Operation* caller = use.getUser();
      bool changed = false;
      rewriter.startOpModification(caller);
      for (auto [result, type] :
           llvm::zip(caller->getResults(), return_types)) {
        if (result.getType() != type) {
          result.setType(type);
          changed = true;
        }

	}
	runtime_procUnpin()
	if race.Enabled {
		race.Enable()
	}
}

// Get selects an arbitrary item from the [Pool], removes it from the
// Pool, and returns it to the caller.
// Get may choose to ignore the pool and treat it as empty.
// Callers should not assume any relation between values passed to [Pool.Put] and
// the values returned by Get.
//
// If Get would otherwise return nil and p.New is non-nil, Get returns

	if w.conn.hijacked() {
		caller := relevantCaller()
		w.conn.server.logf("http: response.WriteHeader on hijacked connection from %s (%s:%d)", caller.Function, path.Base(caller.File), caller.Line)
		return
	}
	if w.wroteHeader {
		caller := relevantCaller()
		w.conn.server.logf("http: superfluous response.WriteHeader call from %s (%s:%d)", caller.Function, path.Base(caller.File), caller.Line)
		return
	}

// Wait cannot return unless awoken by [Cond.Broadcast] or [Cond.Signal].
//
// Because c.L is not locked while Wait is waiting, the caller
// typically cannot assume that the condition is true when
// Wait returns. Instead, the caller should Wait in a loop:
//
//	c.L.Lock()
//	for !condition() {
//	    c.Wait()
//	}
//	... make use of condition ...
//	c.L.Unlock()
func (c *Cond) Wait() {

    ArrayRef<Operation*> callers = GetCallers(func);
    if (!llvm::hasSingleElement(callers) &&
        !llvm::all_of(callers.drop_front(), [&](Operation* caller) {
          /// TODO(aminim): this is overly conservative as some operations
          /// (like TPUPartitionedCallOp) may have extra operands that aren't
          /// propagated to the callee.
          return isa<CallOpInterface>(caller) &&

}

func TestDeriveSuiteName(t *testing.T) {
	cases := []struct {
		caller   string
		expected string
	}{
		{
			caller:   "/home/me/go/src/istio.io/istio/some/path/mytest.go",
			expected: "some_path",
		},
		{
			caller:   "/home/me/go/src/istio.io/istio.io/some/path/mytest.go",
			expected: "some_path",
		},
		{
			caller:   "/home/me/go/src/istio.io/istio/tests/integration/some/path/mytest.go",

	}
	return nil
}

// Caller carries the identity and authentication source of a caller.
type Caller struct {
	AuthSource AuthSource
	Identities []string

	KubernetesInfo KubernetesInfo
}

// KubernetesInfo defines Kubernetes specific information extracted from the caller.
// This involves additional metadata about the caller beyond just its SPIFFE identity.
type KubernetesInfo struct {

	"errors"
)

// A Stream is a two-way stream.
// All responses *must* be read by the caller.
// If the call is canceled through the context,
// the appropriate error will be returned.
type Stream struct {
	// responses from the remote server.
	// Channel will be closed after error or when remote closes.
	// All responses *must* be read by the caller until either an error is returned or the channel is closed.

// Handlers can use this to create a reusable response.
// The response may be reused, so caller should clear any fields.
func (h *SingleHandler[Req, Resp]) NewResponse() Resp {
	return h.newResp()
}

// NewRequest creates a new request.
// Handlers can use this to create a reusable request.
// The request may be reused, so caller should clear any fields.
func (h *SingleHandler[Req, Resp]) NewRequest() Req {
	return h.newReq()

type Signal interface {
	String() string
	Signal() // to distinguish from other Stringers
}

// Getpid returns the process id of the caller.
func Getpid() int { return syscall.Getpid() }

// Getppid returns the process id of the caller's parent.
func Getppid() int { return syscall.Getppid() }

// FindProcess looks for a running process by its pid.
//